You can write to a QuantLib mailing list and describe your
problem. If it is a compilation problem, please provide info about
your operating system, compiler and Boost version as well as details
on the error. If the test suite fails, please report the output
obtained by executing it with the following command line options:

If you built the library successfully but you're getting weird
results when using it, try to provide steps to reproduce the
problem.

A note on posting. If you're starting a new topic, please use
whatever command your mail client provides to start a new message;
do not reply to another unrelated post (or worse, a digest) and
change the subject. Replying can cause your message to appear in the
wrong thread in the mailing list archive and in mail clients that
support threads. This brings inconvenience on a number of
people—possibly including you, as your message might be
overlooked by people not interested in the original topic.

You can do it, but it will fail to carry the sense of urgency you
might have hoped to convey—and the developer is likely to
answer you "please, post your question on the mailing list"
anyway. They might even refer you to this FAQ entry.

There are a number of reasons for this. Messages on the list are
stored, and thus benefit the whole project: the next user with your
problem will be able to find the answer by searching the archives.
Since the developers can volunteer only a limited time, they will
employ it to help as many people as possible. This means giving
priority to questions on the list (which help all the subscriber)
rather than private emails (which only help the sender).

Step-by-step instructions for building the library on different
platforms are
available here; make
sure you're following them. If you still can't build the library,
report the problem on the QuantLib mailing list.

Most likely, the developers didn't have a need for it or the time
to develop it. If you're willing to give it a go, see above for
instructions on how to contribute. If you don't or can't, try
requesting it on the mailing list. This might give other developers
a clue about its usefulness.